<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>2.12</title>
</head>
<body>
    <script>
        let name = "Mike";
        let age = 20;
        let info = 'My Name is ${name},I am ${age+1} years old next year.'
        console.log(info);
        //My Name is Mike,I am 21 years old next year.
    </script>
</body>
</html>